<template>
  <div class="cron-common-cell-div">
    <el-radio v-model="type_" :label="label" @change="change">
      <span class="cron-common-cell-symbol">{{ tag_ }}</span>
      {{ $t('common.current') }}{{ targetTimeUnit }}{{ $t('custom.lastOne') }}
      <el-select v-model="lastNum" :size="size" :placeholder="$t('common.placeholder')" filterable>
        <el-option v-for="item in nums" :key="item.value" :label="item.label" :value="item.value" />
      </el-select>
    </el-radio>
  </div>
</template>

<script>
import { LAST } from '../../../../constant/filed';
import watchValue from '../../../../mixins/watchValue';
import { isNumber } from '../../../../util/tools';

export default {
  mixins: [watchValue],
  props: {
    nums: {
      type: Array,
      default: null,
    },
    size: {
      type: String,
      default: 'mini',
    },
    timeUnit: {
      type: String,
      default: null,
    },
    targetTimeUnit: {
      type: String,
      default: null,
    },
    type: {
      type: String,
      default: LAST,
    },
    tag: {
      type: String,
      default: '',
    },
  },
  data() {
    return {
      label: LAST,
      type_: this.type,
      lastNum: 7,
    };
  },
  computed: {
    tag_: {
      get() {
        return (this.lastNum >= 1 && this.lastNum < 7 ? this.lastNum : '') + LAST;
      },
      set(newValue) {
        if (this.type_ !== LAST) {
          return;
        }
        if (newValue === LAST) {
          this.lastNum = 7;
          return;
        }
        const numStr = newValue.substring(0, newValue.length - 1);
        if (
          !isNumber(numStr) ||
          parseInt(numStr) < this.nums[0].value ||
          parseInt(numStr) > this.nums[this.nums.length - 1].value
        ) {
          this.$message.error(this.$t('common.numError') + ':' + numStr);
          return;
        }
        this.lastNum = parseInt(numStr);
      },
    },
  },
  methods: {
    change() {
      this.$emit('type-changed', this.type_);
      this.$emit('tag-changed', this.tag_);
    },
  },
};
</script>
